Add Javascript support

lib/rex/random_identifier/generator.rb

@@ -62,10 +62,42 @@ class ExhaustedSpaceError < StandardError; end
     ).uniq.freeze
   )
 
+  JavaScriptOpts = JavaOpts.merge(
+    forbidden: (
+      JavaOpts[:forbidden] +
+        # JavaScript Reserved Words + JavaScript Objects, Properties, and Methods + Java Reserved Words + Other Reserved Words + HTML Event Handlers
+        # https://www.w3schools.com/js/js_reserved.asp
+        %w[
+          arguments await debugger delete eval export function in let typeof var with yield
+
+          Array Date eval function hasOwnProperty Infinity isFinite isNaN
+          isPrototypeOf length Math NaN name Number Object prototype
+          String toString undefined valueOf
+
+          getClass java JavaArray javaClass JavaObject JavaPackage
+
+          alert all anchor anchors area assign blur button checkbox clearInterval clearTimeout clientInformation
+          close closed confirm constructor crypto decodeURI decodeURIComponent defaultStatus
+          document element elements embed embeds encodeURI encodeURIComponent escape
+          event fileUpload focus form forms frame innerHeight innerWidth
+          layer layers link location mimeTypes navigate navigator frames
+          frameRate hidden history image images offscreenBuffering open opener
+          option outerHeight outerWidth packages pageXOffset pageYOffset parent parseFloat
+          parseInt password pkcs11 plugin  prompt propertyIsEnum radio reset
+          screenX screenY scroll secure select self setInterval setTimeout
+          status submit taint text  textarea top unescape untaint window
+
+          onblur onclick onerror onfocus onkeydown onkeypress onkeyup onmouseover
+          onload onmouseup onmousedown onsubmit
+      ]
+    ).uniq.freeze
+  )
+
   Opts = {
     default: DefaultOpts,
     java: JavaOpts,
-    jsp: JSPOpts
+    jsp: JSPOpts,
+    javascript: JavaScriptOpts
   }
 
   # @param opts [Hash] Options, see {DefaultOpts} for default values